Dust-collector.



No. 785,525. PATENTED MAR. 21, 1905. G. SIMPSON & W. J. BURTON.

DUST COLLECTOR.

APELIUATION IIjLED DEC. 29, 1903.

UNITED STATES Patented March 21, 1905.

PATENT OFFIC GEORGE SIMPSON, OF RICHMOND, NEAR MELBOURNE, AND IVILLIAMJOSEPH BURTON, OF RICHMOND, VICTORIA, AUSTRALIA DUST-COLLECTOR.

SPECIFICATION forming part of Letters 'Patent No. 785,525, dated March21, 1905.

Application filerl December 29, 1903. Serial No- 187,054.

To (Li/Z 1117710112 it vim/y concern: v

Be it known that we, GEORGE SIMPSON, mechanic, residing at 54 Gardnerstreet, Richmond, near Melbourne, and WI LIAM JOSEPH BURTON, accountant,residing at 13 VValtham street, Richmond, in the State of Victoria,Commonwealth of Australia, subjects of the King of Great Britain,haveinvented Improvements in Dust-Collectors, of which the following is aspecification.

This invention retates to dust-collectors such as are used in machinesfor removing dust from carpets, upholstered furniture, walls, and othersurfaces, and has been devised in order to provide improvements wherebynot only dust, but septic matter and other impurities, may be collectedand efiectively prevented from escaping from same. The collector is alsomore conveniently portableand may be worked by hand, while it is,furthermore, simpler in con struction, and the dust is collected behindthe pumping chamber, whereby considerable power is saved.

Referring to the accompanying drawings, Figure 1 is a plan of theapparatus, and Fig. 2 is a central vertical section on line VII VII ofFig. 1. A

The flexible air-tight hose 6, having at its end a mouthpiece orcleaner, is directly connected to a fan-shaped funnel 13, which deliversthe dust, &c., into an expanding and distributing chamber 14, fittedwith a number of valves 15, corresponding to the number of pumps 16 inthe V-shaped pump-chamber, At the rear of this pump-chamber arecorresponding outlet-valves 17,1Iormally held closed by springs 18 anddischarging into a settling or collecting chamber 19. The inlet-valves15 for the inward passage of the blast, carrying with it the variousimpurities from the dis tributing-chamber 14 to the pump-chamber, arepreferably made of india-rubber backed with light pieces of wood toincrease their rigidity and are hinged at the lower ends, as at 20,Fig. 1. The outlet-valves 17 are of similar construction, but are hingedat their upper ends onto the opposite side of the pumpehamber and are soplaced that they open just beside the apex of the chamber, and thusallow a free passage of the blast, with its impurities, into thesettling or collecting chamber 19. heavier particles are caught and fallto the bottom, and in order to facilitate the removal of this depositthis chamber is made hoppershaped at its base and is provided at thebottom with a door. The finer dust, however, is still suspended. and iscarried on with the draft through the pipe or conduit 21 to thefine-dust-collecting tank 22, which may be of any suitable" kind. Weprefer, however, to use the special construction illustrated in thedrawings at Fig. 1. This tank 22 is composed of a water-tight casing, ofgalvanized iron or other suitable material, in the bottom of which issome soapy water 23 or other liquid to create a foam, so that thesurface of the water is just below the mouth of the pipe or conduit 21.Any heavy particles that may have been carried forward by the draft willhere be deposited into the water. A few inches below the opening of saidpipe or conduit 21, and thus well below the surface of the liquid 23, isan outlet-pipe 24. to which is connected a continuously-actingforce-pump 25 of any suitable structure, by means of which thefoamproducing liquid 23 is conveyed through the It is in thissettling-chamber 19 that the p pipe 8 and is delivered through a rose ornoz- 21c 26 into the enlarged upper portion 27 of said tank or tower inthe form of a spray. When using soapy water, the upward draft of airmeeting the water as it is sprayed into the chamber causes the formationof bubbles and helps to atomize and distribute it all over the internalarea of the tank 22 in such a manner as to readily absorb or collect thefiner particles of dust. The tank 22 is provided at or about its middlepoint with a diaphragm 28, of canvas, cloth, or other suitable porousmaterial, which prevents the larger portions of fine dust from going anyfarther, and thus acts as a rough filter, while, furthermore, the airpassing through the pores of the diaphragm is somewhat broken up, whichassists in the formation of bubbles on meeting the descending spray.Some of the finer dust, however, will even get through this diaphragm28, but is efiiciently arrested by the downward-flowing frothy spray ofsoapy water, which carries the caught particles down to the bottom. Thekind'of material which is most suitable for this diaphragm is one with aheavy pile on its upper side only. The draft of air keeps this waving inan upward direction, thus offering a larger area on which the dust, &c.,arrested in the upper portion of the tank may be deposited. In order tofurther guard against the escape of any of the fine dust, the tank isprovided near its upper end with a second diaphragm 29, of suitableporous material, which allows the clean draft of air to escape. The tankis also fitted with a plug or cock 9, so that the dirty liquid 23 may beeasily removed therefrom and fresh added by pouring it in from the topof said tank through the diaphragms 28 and 2-9.

The crank-arm 30 on the crank axle 31 (which is provided at one end witha drivingwheel 32) is so arranged that there is a continous suctionthrough the hose 6, &c., to the pump-chamber anda continuous draft fromthe settling-chamber 19 through the pipe or conduit 21 into thedust-collecting tank or tower 22.

The settling-chamber, 620., may be conveniently made of wood, and allthe joints are suitably packed with rubber packing 83 or the like inorder to make them air-tight.

The power for driving the force-pump 25 is obtained by connecting thepiston 34 of same to the rocking arm 35, working one of the bellows 16of the pump-chamber.

In cases where the fine dust can be conveniently discharged outa windowthe dust-collecting tower may be dispensed with and the pipe 21 extendedthrough the window, so that the discharge of the dust will be into theatmosphere.

Having now particularly described and ascertained the nature of our saidinvention and in what manner the same is to be performed,

, we declare that what we claim is- 1. A dust-collector involving acasing havinga V-shaped partition provided with openings closed byflap-valves and forming a pumpchamber, a horizontally-extendingpartition arranged in said casing and forming in connection with oneside of said V-shaped partition a dust-expansion chamber, an inlet forsaid expansion cham ber, said horizontally extending partition inconnection with the other side of said V-shaped partition forming adustsettling chamber within said casing, an outlet for saidsettling-chamber, a cylinder communicating with said outlet andcontaining a body of Water in the lower portion thereof, diaphragmsarranged in said cylinder at the upper portion thereof, a sprayingdevice arranged in the upper portion of said cylinder, and meanscommunicating with said spraying device and the liquid at the lowerportion of said cylinder for forcing said liquid through said sprayingdevice.

2. A dust-collector involving a casing having a sectional partitionprovided with openings closed by flap-valves and forming a pumpchamber,a partition arranged in said casing and forming in connection with onesection of the first-mentioned partition, a dust-expansion chamber, aninlet for said expansion chamber, said second-mentioned partition inconnection with the other section of said firstmentioned partitionforming a dust-settling chamber within said casing, and an outlet forsaid settling-chamber;

3. A dust-collector involving a casinghaving a central partitionprovided with openings closed by flap-valves and forminga pumpchamber, apartition arranged in said casing and forming in connection with onesection of the first-mentioned partition a d ust-expansion chamber, aninlet for said expansion-chamber, said second-mentioned partition inconnection with the other section of said first-mentioned partitionforming a dust-settling chamber within said casing, an outlet for saidsettlingchamber, and a dust-arresting n eans communicating with saidoutlet.

4:. A dust-collector involving a casing having a sectional partitionprovided with openings and forming a pump-chamber, valves for closingsaid openings, a partition arranged in said casing and forming inconnection with one of the sections of the first-mentioned partition adust-expansion chamber at the front of and communicating with thepump-chamber, an inlet for said expansion-chamber, said second-mentionedpartition in connection with the other section of said first-1nentionedpartition forming a dust-settling chamber within said casing at the rearof and communicating with the pump-chamber, and an outlet for saidsettling-chamber.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

GEORGE SIMPSON. WVILLIAM JOSEPH BURTON.

Witnesses:

EDWARD WVATERs, J unr., VILLIAM HERBERT \VA'rnRs.

